PV manufacturers JinkoSolar, LONGi Solar and REC Group have recently filed petitions for inter partes review (IPR) of U.S. Patent No. 9,893,215 B2 [215] with the US Patent Trial and Appeal Board (PTAB) in response to Hanwha Q CELLS patent infringement cases announced in early March, 2019.
Retroactive scrapping of feed-in tariffs in the early 2010s lands Madrid in major defeat against developer NextEra, which sought arbitration over project losses.